Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-75
The AirTAC Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-75 is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 125mm stroke, G1/2 air ports and adjustable end cushioning. Its large-bore tie-rod build delivers high thrust and drops into standardized ISO 15552 mounting on heavy automation.
- BoreØ125 mm
- Stroke125 mm
- Port sizeG1/2
- Acting typeDouble acting, adjustable stroke
- Rod threadM27×2.0
- CushionAdjustable, 40 mm
About the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-75
Delivering 6136 N of push force at 0.5 MPa, this ISO 15552 tie-rod cylinder brings four steel rods clamping an aluminum barrel for heavy-duty rigidity. The G1/2 port and M27x2.0 rod thread equip the 125 mm bore for high-flow pneumatics, while adjustable 40 mm cushions decelerate the payload at both ends. It handles a safe working load of about 3682 N, which means you can vertically lift roughly 313 kg with a 2:1 safety margin.
The -75 code defines an external adjuster that shortens the extend stroke on-site by up to 75 mm, dropping the usable forward travel from the 125 mm maximum down to 50 mm without swapping the cylinder. The retract end remains fixed. Because this SKU lacks the -S magnet option, it cannot accept CMSG, DMSG or EMSG sensors. Standard TPU seals operate from -20 to +70 C, though a Viton H upgrade extends that range to 0-150 C.
Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-75 Technical Specifications
| Model | Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-75 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 125 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/2 |
| Rod thread | M27×2.0 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 40 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SGC datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Thread options: PT (blank) / G. TPU seals are not available for the Ø250 bore (NBR / Viton only).
Theoretical Output Force (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-75
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×125 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
SGC-family variants: SGC (double acting), SGCD (double rod), SGCJ (adjustable stroke). Mounting: LB / FA / FB / CA / CB / CR / TC / FTC / TCM1 / TCM2. Seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-75 Is Used
Press Stroke Tuning
Dial in the exact 50 to 125 mm extend depth on a stamping fixture using the external adjuster without disassembling the line.
Variable Diverter Gate
Shift packages by adjusting the extend stop on-site to accommodate different box sizes on the fly.
Pallet Stopper Pin
Set a precise physical stop for incoming pallets, tweaking the 75 mm window as cell layouts change.
Is the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-75 the Right Cylinder?
When sizing this unit, the smaller 160 mm bore jumps to 10053 N at 0.5 MPa, whereas the 125 mm bore sits at the low edge of the large-bore range. The 75 mm adjust window is ideal when you need to fine-tune end positions across multiple machines using a shared spare, or when a fixture requires precise extend depth changes on-site. You can mount it via FA, LB, TC, FTC, TCM1 or TCM2 brackets per the ISO 15552 interface. For any stroke at or above 500 mm, always use a guide rail to prevent side-load damage. Note that a plain cylinder drifts on air loss; fit an external rod lock or pilot-operated check valve if you need to hold a load.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Long-stroke side load — support the rod end
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load; support long strokes at the rod end.
- check Set cushions to minimum, then release gradually.
- check Use correct mounting accessory (LB/FA/FB/CA/CB/CR/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-75 FAQ
At 0.5 MPa it delivers 6136 N push and 5734 N pull. At 0.7 MPa it outputs 8590 N push and 8028 N pull. The theoretical maximum is 1251 kgf at 1.0 MPa. This 125 mm bore unit uses a G1/2 port.
The 125 mm nominal stroke is the maximum forward travel. The external -75 adjuster lets you shorten the extend stroke on-site by up to 75 mm, giving a usable range of 50 to 125 mm. The retract end is fixed, and the adjuster only sets the end position; it does not lock the load.
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